pneumatic ad12-5000 system...

Pneumatic AD12-5000System Manual

11-07

AD12 - 5000 Table of Contents

System Explanation .................................................................................................................................1Drawing 13732-1 Station 1 and Station 2 Configuration .......................................................................6Drawing 13732-2 Engine Room Configuration ......................................................................................8S-146 Rev.E 2/01 ....................................................................................................................................10AD12 Air Drive System Operation ........................................................................................................12B5-43 Rev.D 12/02 .................................................................................................................................14AD12 Air Drive Timing Chart ................................................................................................................16S-171 Rev.C 1/07 ....................................................................................................................................18AD12 Air Drive Valve Movement .........................................................................................................20S-166 Rev.A 2/01 ...................................................................................................................................22AD12 Trouble Shooting Guide ...............................................................................................................24Drawing 4768C - AD12 Control Circuit ................................................................................................26B5-48 Rev.B 2/01 ...................................................................................................................................28AD12 Supply Valve ................................................................................................................................30B5-49, Rev.D, 2/01 ................................................................................................................................32AD12 Speed Interrupt Valve ..................................................................................................................34B5-50 Rev.D 2/01 ...................................................................................................................................36AD12 Speed Boost Valve .......................................................................................................................38B5-54 Rev.C 2/01 ...................................................................................................................................40Shuttle Valve - Manifolds .......................................................................................................................42B4-20 Rev.J 9/06 ....................................................................................................................................44CH5, CH10, CH11 Series Control Heads ...............................................................................................46B4-19 Rev.C 2/01 ...................................................................................................................................48SP9 Push Button Valve ...........................................................................................................................50REVISIONS LIST ..................................................................................................................................52Drawing 6443A SJ8-4100 Junction Panel ..............................................................................................54Drawing 5348 TG2 Test Gauge Panel ....................................................................................................56Drawing 5324 - SV2-3501 Service Kit ...................................................................................................58Drawing 8256C - AT11-2100 Air Treatment Panel ...............................................................................60Norgren [F74G] Filter .............................................................................................................................62Norgren [R74G] Regulator .....................................................................................................................64Noshok Gauges .......................................................................................................................................66Parker Ball Valve ....................................................................................................................................68Drawing 6242A Test Gauge Panel .........................................................................................................70B5-63 Rev.C 12/00 .................................................................................................................................72SV2 Spool Valves ...................................................................................................................................74B5-72 Rev.C 2/01 ...................................................................................................................................76RV8 Relay Valve ....................................................................................................................................78Drawing 7199D SP10-06666 Selector 80

3

System Explanation

Mathers Controls CH5 Control Heads will be mounted at all remote stations.

The Engine Room Station will have a two (2) position LOCAL/REMOTE selector and can take control from a remote station at any time.

Stations One and Two will have push button station transfer. These stations will be piped to an AD12 Control Circuit. The AD12 Circuit provides a proportional Neutral delay on a through Neutral shift.

AIR TREATMENT PANEL

The Air Treatment Panel will accept the ship’s air supply of 125 to 250 psi. The panel is pre-assembled and provides filtration, regulation and system isolation. A 30 gallon Air Receiver is provided to store control air.

CLUTCH CONTROL

The Reintjes reduction gear is equ9ipped with a pneumatic selector valve. Supply air is provided to the unit for neutral centering. Direction signals from the AD12 circuit will be piped to Ahead and Astern Ports on the pneumatic selector valve.

ENGINE MOUNTED BRACKETING

A 30 - 70 PSI air signal is required by the PGA pneumatic governor.

SHIPBOARD SPARES

Shipboard rubber spare parts are supplied. At least one of each gasket, diaphragm, or "O" ring is included. Drawings or exploded views on the service sheets cover all parts.

SYSTEM INSTALLATION

Installation instructions and service manuals are provided. The shipyard is to make the actual control system installation. Final system checkout and trials are then to be made.

IMPORTANT:

1 Reasonably clean, dry air must be provided for the propulsion control system.2 Blow down all control lines before final connections are made.

MATERIAL LIST 2System Explanation 3Drawing 13732-1 Station 1 and Station 2 Configuration 6Drawing 13732-2 Engine Room Configuration 8S-146 Rev.E 2/01 10AD12 Air Drive System Operation 10B5-43 Rev.D 12/02 14AD12 Air Drive Timing Chart 14S-171 Rev.C 1/07 16AD12 Air Drive Valve Movement 16S-166 Rev.A 2/01 18AD12 Trouble Shooting Guide 18Drawing 4768C - AD12 Control Circuit 20B5-48 Rev.B 2/01 22AD12 Supply Valve 22B5-49, Rev.D, 2/01 24AD12 Speed Interrupt Valve 24B5-50 Rev.D 2/01 26AD12 Speed Boost Valve 26B5-54 Rev.C 2/01 28Shuttle Valve - Manifolds 28B4-20 Rev.J 9/06 30CH5, CH10, CH11 Series Control Heads 30B4-19 Rev.C 2/01 34SP9 Push Button Valve 34REVISIONS LIST 36Drawing 6443A SJ8-4000 Transfer Junction Panel 38Drawing 5324 - SV2-3501 Service Kit 40Drawing 8256C - AT11-2100 Air Treatment Panel 42Norgren [F74G] Filter 44Norgren [R74G] Regulator 46Noshok Gauges 48Parker Ball Valve 50Drawing 6242A Test Gauge Panel 56B5-63 Rev.C 12/00 58SV2 Spool Valves 58B5-72 Rev.C 2/01 62RV8 Relay Valve 62Drawing 7199D SP10-06666 Selector 64

8

Drawing 13732-2 Engine Room Configuration

Northway Products-Mathers Controls. Mukilteo, Washington11027 47th Ave W Mukilteo, WA 98275

Telephone (425) 493-1127 Telefax (425) 493-9363

Page 4-10

S-146 Rev.E 2/01Northway Products-Mathers

Controls- Mukilteo Plant

Reference Figure 4-1:

A) PURPOSE:The Mathers AD12 Air Drive is designed to give optimum handling of diesel pow-ered, reverse-reduction gear marine applications in the 500 to 10,000 H.P. range.The Mathers AD12 Air Drive offers -

• Adjustable minimum neutral delay.• Ahead to Astern Neutral delay in proportion to vessel speed - adjustable.• Adjustable duration of speed interrupt following clutch shift.• Speed boost during speed interrupt, if needed.• All timing is done with fixed orifices.• Timing can be adjusted to use the advantages offered by a propeller shaft brake.

B) COMPONENT IDENTIFICATION:1. Air Treatment Panel:

The air treatment panel will accept an air supply of 125 to 250 psi. The air supply should be reasonably cleanand dry. The vented cock will block or pass the supply air. The filter will remove particles from the air down to5 microns. The filter also serves as a water trap and is equipped with a manual drain. The regulator sets the sys-tem pressure, typically 125 psi. The boost regulator sets the amount of speed boost pressure.

2. ITEM 10 - CH5 Mathers Control HeadThe CH5 Control Head is a single lever control providing an Ahead Pilotair signal, an Astern Pilotair signal, anda variable pressure signal. With the CH5 lever In the vertical, Neutral position, the pressure at Port 6, 7 and 8are zero. A 20 degree movement in the Ahead direction will put supply air to Port 8 - Port 7 will remain open toexhaust. Further movement Ahead will raise the speed signal at Port 6 from approximately 10 to 75 psi in pro-portion to the CH5 lever movement. The speed pressure range depends on the particular cam installed. Thereare optional cams. A 20 degree CH5 lever movement in the Astern direction will put supply pressure to Port 7.Port 8 is exhausted, and further movement will raise the variable pressure at Port 6. Ports 7 and 8 are reversedwhen the CH5 Control Head is turned around.

3. ITEM 11 - Control Air GaugeThe gauge indicates whether the station has command, as well as control air pressure.

4. ITEM 12 - AD12-2101 Directional ValveThe valve is a 4-way, double air piloted spool valve, spring centered and exhaust center.

5. ITEM 13 - AD12-2201 Supply ValveThe valve is a 4-way, double air piloted spool valve, spring centered and supply center.

6. ITEM 14 - AD5-1462 Astern Check ChokeThe check choke allows free flow in the direction of the arrow. The choke in the opposite direction is a fixedorifice.

7. ITEM 15 - AD5-1462 Ahead Check ChokeSame as astern above.

8. ITEM 16 - CI-0898 Shuttle ValveThe shuttle valve serves to isolate two lines and to deliver to a common line.

9. ITEM 17 - CI-0898 Shuttle ValveSame as Item 16.

10. ITEM 18 - AD12-2301 Maximum Delay Selector ValveThe valve is a 3-way, single air pilot spring return spool valve.

AD12 Air Drive System Operation

11

11. ITEM 19 - AD5-1462 Speed Interrupt Check ChokeSame as Item 14.

12. ITEM 20 - AD5-1462 Build-Up Check ChokeThe valve allows no flow in one direction and orifice flow in the other direction.

13. ITEM 21 - AD5-1462 Maximum Delay Check ChokeSame as Item 20, allowing a slow bleed down.

14. ITEM 22 - AD12-2301 Speed Interrupt ValveThe valve is a 3-way, single air pilot, spring return spool valve.

15. ITEM 23 - AD12-2401 Speed Boost ValveThe valve is a 3-way, double air pilot, spring return, spool valve.

16. Governor PositionerThe Positioner controls the engine speed from idle to full speed. A variable air pressure is balanced against aspring to obtain a desired speed.

17. Clutch ActuatorThe Actuator shown is used to position a hydraulic clutch selector lever in the Neutral, Ahead or Astern posi-tion. The Actuator is a three-position device with spring centering. Therefore, the Ahead and Astern controllines are vented in Neutral. The same Ahead, Astern lines will operate to control an air clutch.

18. Test Gauge PanelThe test gauges read the actual clutch signals and speed signals. They are very helpful in system set-up and fortroubleshooting. The test gauges are usually mounted in a convenient location in the Engine Room.

C) SPOOL VALVE SYMBOL EXPLANATIONAll five spool valves used on the AD12 are either spring centered, or spring return.Spool Valves (Items 18, 22 and 23) are 3-way valves. If there is no pilot pressure, the valves areconnected as shown by the solid line. Pilot pressure will shift the valve to the dotted connection.If pilot pressures on Item 23 are equal, the connection is on the solid line.Spool Valves (Item 12 and 13) are 4-way valves, spring centered. With no pilot pressure, they areconnected as shown by the solid line.Pilot pressure at Ahead Port 8 will shift the Direction Valve (Item 12) to connect Line 70 to Line56. Line 55 will remain vented through Direction Valve (Item 12). Pressure in Line 56 will passfreely through Check Choke (Item 15), fill Volume C, pass through Shuttle Valve (Item 16) to the end pilot of the Supply Valve (Item 13). The Supply Valve will shift and will maintain supply air to Line 70 and will vent Line 69.

D) OPERATION:1. Neutral Position CH5

The air treatment panel provides 125 psi air to Port 1 of the CH5 Control Head, but the pressure at Ports 6, 7 and8 is zero because the valve is in the Neutral position. Line 50 also delivers 125 psi air to Port 1 of the AD12. Theair passes to Supply Valve (Item 13) and through to Lines 69 and 70. Lines 69 and 70 are blocked by the Direc-tion Valve (Item 12) because there is no Ahead or Astern signals to Lines 51 or 52.

2. Ahead PositionThe CH5 Control Head will put a 125 psi pilot signal down Line 51 to Port 8 on the AD12 Air Drive and to theend pilot of Direction Valve (Item 12). Supply Valve (Item 13) has been in the spring-centered position and haspassed supply air through both Lines 69 and 70. Direction Valve (Item 12) now shifts and Line 70 is connectedto Line 56. The 125 psi air signal passes through Check Choke (Item 15), Volume C and Shuttle Valve (Item 16)to the end pilot operator of Supply Valve (Item 13). The spool on Supply Valve (Item 13) is shifted. Supply airremains to Line 70 and is exhausted from Line 69.The supply air passes down Line 56, out Port 2 to the Ahead test gauge and to Ahead side of the Clutch Actua-tor. The Clutch Actuator will shift the hydraulic selector lever to the Ahead position.The supply air also passes from Line 56 through Shuttle Valve (Item 17) down Line 57. Speed Interrupt Valve(Item 22) will be shifted to connect the Speed Line 59 to Line 60. Speed Boost Valve will be shifted to connectLine 63 to Line 64. If a speed boost pressure has been set at the air treatment panel, this pressure will be passedon to the governor. The supply signal of 125 psi will slowly pass through Check Choke (Item 19), building uppressure in Volume A, and also on the end pilot of Speed Boost Valve (Item 23). As the pilot pressure on theright hand pilot builds to approximately 90 psi, the spring will shift the valve to the solid line connection and the

Northway Products-Mathers Controls Mukilteo, Washington11027 47th Ave WMukilteo, WA 98275


Page 4-12

speed line 60 will be connected to Line 64 and Speed Boost Line 63 will be blocked. The circuit is now ready to pass a speed signal. If the operator is calling for FULL AHEAD, the speed signal will be approximately 70 psi.Volume D provides the variable delay; long Neutral delay on reversal from high speed and short Neutral delay on reversals when the vessel speed is slow. The speed signal passes through Check Choke (Item 20), through Maximum Delay Selector (Item 18) to Volume D. We have said the speed signal is full or approximately 70 psi. The pressure in Volume D begins to build toward 70 psi. The time required to reach 70 psi may be, for example, 30 seconds, and is determined by the orifice size in Check Choke (Item 20). Check Chokes (Items 20 and 21) are physically installed, one above the other. Check Choke (Item 20) is the lower and Check Choke (Item 21) is the upper.We will assume we have been running at full speed Ahead for a period of five minutes or longer. We are, there-fore, assuming the vessel has full way or maximum velocity.

3. Full Speed ReversalThe operator moves the CH5 Control Head lever (Item 10) quickly from FULL AHEAD to FULL ASTERN. TheCH5 Control Head will exhaust Port 8 and Line 51 and connect supply air to Port 7 and Line 52. Direction Valve(Item 12) will shift, connecting Line 69 to Line 55 and Line 56 to exhaust. Line 69 is connected to exhaustthrough Supply Valve (Item 13). Supply Valve (Item 13) is a spring-centered supply center valve, but there ispressure on the right hand pilot operator of Item 13 and the valve cannot center until the pilot operator pressurefalls to approximately 16 psi, or lower. Therefore, both Lines 55 and 56 are connected to exhaust. The pressurein Speed Line 59 is 70 psi, but is blocked by Speed Interrupt Valve (Item 22) since the pilot signal is exhausted.Volume A is also exhausted. Since Line 55 and Line 56 are vented, the Clutch Actuator goes to NEUTRAL, as itis spring-centered.The system is in the Neutral pause period and will remain in this condition until the right hand pilot operatorpressure on Supply Valve (Item 13) drops below 16 psi. Supply Valve (Item 13) will then center. Volume C ischarged to 125 psi and Volume D is charged to speed line pressure, or approximately 70 psi. Depending on theorifice size in Check Choke (Item 15) Volume C will bleed down to 16 psi in approximately four seconds. Vol-ume D will bleed down through Check Choke (Item 21) and depending on the orifice size may take twelve sec-onds to bleed from 70 psi to 16 psi. Shuttle Valve (Item 16) separates the two volumes. The above description isfor a Full Speed Reversal. If the vessel is at a slower speed, say a 50 psi speed signal, the delay time is then from50 to 16 psi and instead of a twelve second neutral, the delay would reduce to approximately seven seconds.Once the pilot valve pressure drops to 16 psi or below, Supply Valve (Item 13) will spring-center and supply airfrom Port 1 will pass to Lines 69 and 70. Line 55 is connected to Line 69 because of astern air signal provided byLine 52. Volume B is charged to 125 psi and Supply Valve (Item 13) is shifted by pilot pressure in Line 53. Line69 remains connected to supply air from Port 1 and Line 70 is connected to exhaust.Pressure in Line 55 shifts the Clutch Actuator to the astern position. Line 55 also shifts Maximum Delay Valve(Item 18) so that speed pressure is blocked by Maximum Delay Valve (Item 18) and there is no pressure build-upin Volume D in the astern condition. Pressure in Line 57 from Shuttle Valve (Item 17) shifts Speed InterruptValve (Item 22) to pass the speed signal from Line 59 to Line 60. Line 57 shifts Speed Boost (Item 23) to blockthe speed signal Line 60 and to pass the boost signal from Line 63 to the Speed Line 64. The speed boost signalwill remain on until the pressure in Volume A has built through Check Choke (Item 19) to approximately 90 psi.Then Speed Boost Valve (Item 23) will shift to block Speed Boost Line 63, and connect Speed Line 60 to Line 64.The neutral delay from Astern to Ahead will only be Volume B and the orifice size in Check Choke (Item 14).The orifices in Check Chokes (Items 14 and 15) are normally the same size.The longer variable delay time is only from Ahead to Astern. Volumes B and C set the minimum consistentdelay time and Volume D sets the longer variable delay from Ahead to Astern. The delay times for each volumeand orifice size are called out on the AD12 Timing Chart, Bulletin B5-43.The AD12 Air Drive offers the longer delay on a Full Speed Reversal when an engine might be in danger of stall-ing. It maintains the short maneuvering times to facilitate ship handling at the lower hull speeds.

Northway Products.Mathers Controls Mukilteo, Washington11027 47th Ave WMukilteo, WA 98275


Page 4-13

Figure 4-1:

Northway Products-MAthers Controls Mukilteo, Washington11027 47th Ave WMukilteo, WA 98275


Page 5-14

B5-43 Rev.D 12/02Northway Products-Mathers

Mukilteo Plant

A) CAVITY 'A' - SPEED BOOST CAVITYThis cavity sets the amount of time the throttle is held to either idle or a boost setting. The boosttime starts as the clutch shifts in the called-for direction.

B) CAVITIES 'B' & 'C' - MINIMUM NEUTRAL TIMING CAVITIESTheses cavities set the minimum amount of time the clutch is in neutral and throttle is at idle. Itis, therefore, the minimum amount of time the shaft brake is applied, if a brake is used. Nor-mally, the timing number in 'B' and 'C' cavities are the same.

C) CAVITY 'D' MAXIMUM NEUTRAL TIMING CAVITYD1 is the lower timing valve and sets the charge rate of cavity 'D'. D2 is the upper timing valveand sets the discharge rate of cavity 'D'. Cavity 'D' can extend the neutral timing only in theAhead direction.

D) FIXED TIMING ORIFICEThe orifices are numbered. The number corresponds to an orifice size providing the timing asshown in the table below. The timing orifice part number is AD5-1462 followed by a suffix num-ber indicating orifice size.

AD12 Air Drive Timing Chart

TIMING NO. CAVITY 'A' CAVITIES 'B' & 'C' CAVITY 'D1' 'D2'

123456789

1.251.5

1.752

2.53

4.55.57.5

1.51.75

22.53.54.5

67.510

1013182230

3456

8.510.5

151926

NOTE: The above times are based on a control system pressure of 125 psi and a maximum speed signal of 72 psi. If the system pressure is changed to 140 psi 'B' and 'C' cavity timing will increase by 20%. If the maximum speed signal is 62 psi, D2 cavity timing will decrease by 10%.

Timing Number10535

NorthwayProducts-Mathers Controls Mukilteo, Washington11027 47th Ave WMukilteo, WA 98275


Page 6-16

S-171 Rev.C 1/07Northway Products-Mathers

Mukilteo Plant

See Dwg. No. 6737-A

A) PURPOSE:1. To confirm proper operation.

Proper operation of the Mathers AD12 Air Drive can quickly be confirmed visually by watching the movement of the five spool valves. This can be done without the engine running.

2. To aid in troubleshooting.Knowing from the following write-up what each spool valve should be doing allows for troubleshooting if avalve is operating other than normally.

B) AD12 FUNCTION:• To provide a minimum pause in Neutral when shifting from Ahead to Astern or vice versa. The duration

of this minimum pause is set by the orifice size feeding cavities 'B' and 'C'.• To provide a maximum pause in Neutral when shifting from Full Ahead to Full Astern. The maximum

pause is eliminated when shifting from Astern to Ahead. The duration of the maximum pause is set bythe orifice size feeding cavity 'D'.

• To provide a speed interrupt or speed boost to the governor when calling for Ahead or Astern clutchengagement. The duration of this speed interrupt is set by the orifice size feeding cavity 'A'.

C) AD12 OPERATION: SEE DWG. NO. 6737-A1. Air signals to and from the AD12 Air Drive

'B' EndPort 8 Forward air signal 125 psi Port 1 Supply air 125 psi Port 7 Reverse air signal 125 psi

'A' EndPort 3 Reverse air signal 125 psi Port 2 Forward air signal 125 psiPort 4 Speed boost input from air treatment panel Port 5 Speed signal to governor 0 to 70 psiPort 6 Speed signal from controls 0 to 70 psi

1. Spool Valve MovementControl Head levers in Neutral - no pressure at port 7 and 8.

Item 12 Spring centered direction valve Item 13 Spring centered supply valveItem 18 Spring return maximum delay selector Item 22 Spring return speed interruptItem 23 Spring return speed boostNo air signal from ports 3, 2 and 5.

Control Head levers to idle forward 125 psi at port 8Item 12 Valve shifts to the right Item 13 Valve shifts to the leftItem 18 Valve remains in return position. Item 22 Valve shifts, indicated by white plastic end extension on

the right end.Item 23 Valve first shifts to the right and then returns at the end of the speed interrupt time.Port 2 will be pressurized for forward. If there is boost pressure at port 4, it will pass through port 5 for the period of speed boost and then return to zero. Movement of the remote control to full forward will raise the speed 'in' signal at port 6 to approximately 70 psi. The 70 psi signal will pass to port 5 and then to the engine governor.

Control Head levers quickly from full forward to full astern. Port 8 will be vented and port 7 will rise to 125 psi.Item 12 Immediate movement to the left.Item 13 Will remain shifted to the left and at the end of the neutral pause will return to center and then

quickly shift to the right. This creates the neutral pause.Item 18 Will remain in the return position until the end of the neutral pause and will then quickly shift to

the extended position with white plastic end extended. This will block the maximum pause signal.Item 22 Will quickly retract with white plastic end disappearing. At the end of the neutral pause, the valve

will shift and show the white plastic tip.

AD12 Air Drive Valve Movement

17

Item 23 Will remain retracted until the end of the neutral pause and will then quickly shift to the right. It will stay there for the period of the speed interrupt and will then return to the left. This will give the speed interrupt or speed boost.

F R3 POS.

Supp

ly

125

PSI

8 1 7AD12-2101 B

AD12-2201

12

13

18

Shuttle

CB

D

AD12-2301

2 POS.

Shuttle2 POS.

A

AD12-230122

AD12-2401 A6737A3 2 4 5 6

Rev

erse

Forw

ard

Boos

t

Spee

d

23

Northwway Products-Mathers Controls Mukilteo, Washington11027 47th Ave WMukilteo, WA 98275

Telephone (425)493-1127Telefax (425) 493-9363

Page 7-18

S-166 Rev.A 2/01Northwaty Products-Mathers

Mukilteo Plant

Propulsion Control SystemsThe key to rapid and accurate trouble shooting is knowing what the system should be doing under all operating conditions, and by making use of the test gauges. The test gauges serves to confirm proper operation, and to pin point problems when trouble shooting. Bulletin S-146 explains the operation of the control system. Bulletin S-171 explains the normal spool valve movement of the AD12 air drive.Most control checking can be done without the engine running. Move the controls through all possible maneuvers and by using the test gauges and control circuit diagram, work to pinpoint any problem. The following Trouble Shooting Guide deals with most of the common control problems.Air leaks in any pneumatic control system should be corrected whenever they are found. Therefore, the Trouble Shooting Guide does not go into leakage problems. It is a good idea to check all control runs and components in a system periodically when the vessel is quiet. The serious leaks can be heard.

AD12 Trouble Shooting Guide

SYMPTOM CAUSE REMEDYEngine will not reach full rated RPM with the control lever in the full speed position.

The speed air signal pressure is too low.

The speed air signal is too low, due to leakage.

Governor actuator is not positioning the governor arm to full.

Governor or engine problem.

Check test gauge for speed signal. If signal is low at idle and at full, increase control head preload. Set 3 psi above full speed requirement.

A leak at the governor actuator or in the speed line can cause a low pressure speed signal.

Adjust actuator to governor arm linkage. Actuator is usually designed for 2" throw.

If the governor is receiving a full speed input signal, then the trouble is further along in the propulsion system.

Speed boost or speed interrupt time is too short. Confirm, using test gauges.

Cavity 'A' timing orifice is too large.

Leak around Cavity 'A' timing orifice.

See Bulletin B5-43 for orifice sizing and timing.

Check for dirt on orifice seating surface. Check O-ring condition.

Speed boost or speed interrupt remains on too long but is consistent.

Cavity 'A' orifice is too small. See Bulletin B5-43 for orifice sizing and timing.

Speed boost stays on. AD12-2401 Speed Boost Valve spool is stuck in boost position.

Lubricate the Speed Boost Valve AD12-2401.

No speed boost. No speed boost pressure. Turn up boost regulator on the air treatment panel, as required. Not to exceed 4 psi above idle speed signal.

Gear will not shift to astern. However, gear will shift to neutral or to ahead.Or the opposite condition.

Supply Valve AD12-2201 spool is stuck, and spring will not center valve spool.

Test gauges will confirm no clutch pressure astern. Remove and lubricate AD12-2201 spool.

Gear will not shift to neutral from ahead, but will shift thru to astern, or vice versa.

Spool on Direction Valve AD12-2101 is sticking.

Disassemble Spool Valve AD12-2101, clean and lubricate.

Neutral delay timing (on a through shift) is too short. Brake does not have time to stop the shaft or for engine RPM to come down.

The orifice in Cavities 'B' and 'C' are too large.

See Bulletin B5-43 for orifice sizing and timing.

Check for dirt on orifice seating surface or a faulty O-ring.

Check system timing using test gauges.Hydraulic clutch drags in neutral.

Hydraulic clutch actuator misadjusted. Remove link connecting actuator to hydraulic clutch selector lever. Match neutrals and 1" stroke forward and reverse.

Drawing 4768C - AD12 Control Circuit



Page 9-22

B5-48 Rev.B 2/01Northway Products-Mathers

Mukilteo Plant

C) DESCRIPTION:The valve is a four-way, double air piloted spool valve, spring centered.

D) OPERATION:Piloted on one end from Astern volume and on the other end from Ahead volume which arecharged by the output from the direction valve(s). Normal position is centered which allows sup-ply air to pass through and on to the direction valve.

E) ADJUSTMENTS:This valve requires no adjustments.

F) MAINTENANCE:The AD12-2201 should be disassembled periodically for inspection and cleaning. Mark thevalves sections as they must be reassembled in the same order. Wash all metal parts with sol-vent. Clean rubber parts with soap and water and examine them for cracks and signs of wear.Replace worn or defective parts as needed. Do not disassemble the items in DETAIL 1, as Loctitehas been used to hold them in the desired dimension.Service kit SV2-3501 contains all parts needed to repair this valve. During reassembly, lubricateall friction surfaces and seals with Dow Corning 111.

AD12 Supply Valve

A) PART NUMBER:AD12-2201

B) SPECIFICATIONS:•Material:Die cast anodized aluminum.

Stainless steel spool.•Maximum operating pressure:

200 psi (14.1 kg/cm2)•Weight: 13 oz. (369g)•Overall dimension: 1-3/8 x 1-3/8 x 5-3/8" 10540

23

ITEM QTY PART NO. DESCRIPTION ITEM QTY PART NO. DESCRIPTION

12345678910111213*

1212411211116

AD12-1203-2SV2-0103SV2-0202SV2-0303SV2-0403SV2-0404SV2-0502SV2-0601SV2-0802SV2-0902SV2-1101SV2-1602SV2-1703

Valve LabelEnd OperatorValve SpacerEnd PlateValve SegmentValve SegmentBolt PistonWasherWasherSpoolSpring (Blue)Seal

14*15

16*

17*

18*

28

4

4

2

CI-0210CI-1100

CI-1101

CI-1102

CI-1103

SV2-3501

O-ringDIN 127-Lkwasher,Stl. PltdDIN 912 - Screw, Soc. Hd. Pltd. 3mmDIN 912-Screw, Soc. Hd. Pltd. 3mmDIN 84 - Screw, Stl. Pltd.

Service Kit

* Parts included in service kit.Service Kit SV2-3501 is included in the AD12-5001 Service Kit.

DETAIL 1

1.39(35,3mm)

17

15214

11

9

128

107

3

10541

18

413

5

5

15

6

5

518

4

13

16 1

2 14

8

Northway Produts-Mathers Mukilteo, Washington11027 47th Ave WMukilteo, WA 98275


Page 10-24

B5-49, Rev.D, 2/01Northway Products-Mathers

Mukilteo Plant

C) DESCRIPTION:The valve is a three-way, single air pilot spring return spool valve. It is on AD14 as speed inter-rupt and AD12 as maximum delay valve.

D) OPERATION:1. Speed Interrupt

Piloted by a signal from the shuttle valve which would allow the speed signal to pass through, when incoming signal stops the valve is spring returned to exhaust position.

2. Maximum Delay

Piloted by a signal from the directional valve (AD12-2101) by the astern line.


F) MAINTENANCE:The AD12-2301 should be disassembled periodically for inspection and cleaning. Mark thevalves sections as they must be reassembled in the same order. Wash all metal parts with sol-vent. Clean rubber parts with soap and water and examine them for cracks and signs of wear.Replace worn or defective parts as needed.Service kit SV2-3501 contains all parts needed to repair this valve. During reassembly, lubricateall friction surfaces and seals with Dow Corning 111.

AD12 Speed Interrupt Valve

A) PART NUMBERAD12-2301

B) SPECIFICATIONS:• Material:Die cast anodized aluminum.

Stainless steel spool.• Maximum operating pressure:

200 psi (14.1 kg/cm2)• Weight: 13 oz. (369g)• Overall dimension: 1-3/8 x 1-3/8 x 4-1/4" 10543

25


12345678

11123111

AD12-1203-3SV2-0103SV2-0202SV2-0303SV2-0403SV2-0601SV2-0701SV2-1201

Valve LabelEnd OperatorValve SpacerEnd PlateValve SegmentPistonRodSpool

910*11*12

13*

14*

1418

8

2

SV2-1302SV2-1703CI-0210CI-1100

CI-1101

CI-1104

SV2-3501

Spring (Red)SealO-ringDIN 127-Lkwasher Stl. Pltd.DIN 912-Screw, Soc. Hd. Stl. Pltd. 3mmDIN 912-Screw, Soc. Hd. Stl. Pltd. 3mmService Kit

* Parts included in service kit.Service Kit SV2-3501 is included in the AD12-5001 Service Kit.

131

211

12

6

85

4

14

5

5

10

4

14

7

9

3

12 1310544

10



Page 11-26

B5-50 Rev.D 2/01Northway Products-Mathers

C) DESCRIPTION:The valve is a 3-way, double air pilot, spring offset spool valve.

D) OPERATION:Piloted on one end from volume 'A', and the other end by the shuttle valve between the directionlines,. This valve allows speed boost to pass through until the pressure in volume 'A' equals thesupply pressure. The speed signal will then be allowed to pass through.


F) MAINTENANCE:The AD12-2401 should be disassembled periodically for inspection and cleaning. Mark thevalve's sections, as they must be reassembled in the same order. Wash all metal parts with sol-vent. Clean rubber parts with soap and water, then examine them for cracks and signs of wear.Replace worn or defective parts as needed.Service Kit SV2-3501 contains all parts needed to repair this valve. During re-assembly, lubricateall friction surfaces and seals with Dow Corning III.

AD12 Speed Boost Valve

A) PART NUMBER:AD12-2401

B) SPECIFICATIONS:• Material: Die cast anodized aluminum.

Stainless steel spool.• Maximum operating pressure:

200 psi (14.1 kg/cm2)• Weight: 13 oz. (369g)• Overall dimension:1-3/8 x 1-3/8 x 5-3/16"

10545

27


12345678910*

1212321114

AD12-1203-4SV2-0103SV2-0202SV2-0303SV2-0403SV2-0601SV2-0701SV2-1201SV2-1602SV2-1703

Valve LabelEnd OperatorValve SpacerEnd PlateValve SegmentPistonRodSpoolSpring (Blue)Seal

1112*13

14*

15*

16*

128

4

4

2

SV2-1801CI-0210CI-1100

CI-1101

CI-1102

CI-1104

SV2-3501

Spring SeatO-ringDIN 127- Lkwasher Stl. Pltd.DIN 912 - Screw, Soc. Hd. Pltd 3mmDIN 912-Screw, Soc. Hd. Pltd. 3mmDIN 84 - Screw, Stl. Pltd.Service Kit

* Parts included in Service Kit.Service Kit SV2-3501 is included in the AD12-5001 Service Kit.

1

212

8

6

13

10

5

5

5

4

16

16

4

3

11

9

7

15

10546

6

12 213

14



Page 12-28

B5-54 Rev.C 2/01Northway Products-Mathers

Mukilteo Plant

D) MAINTENANCE:The VS2-1000 should be disassembled periodically for inspection and cleaning. Clean rubberparts with soap and water, examine them for cracks and signs of wear and replace as needed.Service kit VS2-1001 contains all rubber parts needed to repair this valve.

Shuttle Valve - Manifolds

A) PART NUMBERS:VS2-1000Shuttle ValveVS2-1100W/Side ported manifoldVS2-1200W/Bottom ported manifoldSJ7-1000W/Three valve manifold block

B) SPECIFICATIONS:• Material: Anodized Aluminum - Buna N• Maximum operating pressure: psi (10.6 kg/cm²)• Weight: 1.5 oz. (42.6g)• Flow: 46 SCFM @ 100 psi• Overall Dimension: 2-3/4 X 1-1/4 X 1-1/4"• Mounting holes 1/4", 2-5/16" on center

C) DESCRIPTION:The shuttle valve has three ports, two inlets and oneoutlet. The valve selects the higher input air pres-sure and directs the flow through the common out-let. The valve is designed for manifold mounting.

29

ALL PORTS 1/4 NPT


1 2 3*4*5*

11113

VS2-0103VS2-0202MX05785CI-0017CI-0111

BodyEnd CapBallO-ringO-ring

6*

7

*

3

2

11

CI-1101

CI-1286

CI-1064VS2-1001

Screw, Soc.Hd. M4x7x12Screw, Soc.Hd. 1/4-20x1/2"Allen Wrench,3mmService Kit

Parts included in VS2-1001 service kit.Service Kit VS2-1001 is included in the AD12-5001 Service Kit.

1.25“(31,8mm)

3.0“(76.2mm)

1.0“(25,4mm)

1.0“(25,4mm)

1.0“(25,4mm)

3.0“(76.2mm)

1.25“(31,8mm)

6.0“(152,4mm)

3.5“(88,5mm)

SJ7-0202Side PortedThree Valve

Manifold

VS2-1102Side Ported

Manifold

VS2-1202Bottom Ported

Manifold

10537 7

2

4

3

5

7

1

5 10547


Telephone (425) 493-1127Telefax (425) 493-9363

Page 13-30

B4-20 Rev.J 9/06Northway Products-Mathers

Mukilteo Plant

A) DESCRIPTION

D) MAINTENANCE AND/OR OVERHAUL

System inspection should be scheduled at least once a year, checking for dirt, water and lubrication in the system. No more than five years interval is recommended for major over-haul. It can be performed with only one 1/2 inch, one 7/16 inch, and one 3/8 inch combination wrench, 3/16 inch and 5/32 inch Allen, and a straight slot screwdriver.

These Control Heads have been designed to allow for "in place" maintenance and/or overhaul. If unit removal is desired, the manifold must be first removed (leaving pipe connections undisturbed) and the valve body may then be removed from the top.

Completely disassemble the Control Head.

CH5, CH10, CH11 Series Control Heads

The CH5 Control Head is a lever operated pneumatic control valve that provides two pilot air signals, and a variable pressure signal proportional to lever position.

The CH10 Control Head is a lever operated pneumatic control valve that provides a variable pressure signal proportional to lever position.

The CH11 Control Head is a lever operated pneumatic control valve that provides two variable pressure signals proportional to lever position.

The Control Head will also accept a mechanical input from a second station CH8 Control using 1/8 inch stainless steel cable. The Control Head has a polished stainless steel finish and is available in right or left-hand configurations. Three lever options are available: Long Lever, Short Lever, and Knob Lever. Lever position indicators are also available.

B) SPECIFICATIONS:•Material: Brass and stainless steel•Maximum operating pressure: 200 psi (14.1 kg/cm²)•Flow: 50 SCFM @ 100 psi (2360 dm³/sec @ 7 kg/cm²)•Weight: Approximate 20 lbs (9 kgs)

Figure 132:

C) INSTALLATION

These Control Heads are designed for panel mounting. The Control Head may be installed and removed from the top, only after the manifold is removed. See Figures 1, 2, 3 and 4 for dimensions.

Port CH5 CH10 CH11

1 Supply Supply Supply

6 Pressure Signal Pressure Signal Plugged

7 Pilot Air Signal Plugged Pressure Signal

8 Pilot Air Signal Plugged Pressure Signal

Figure 133: Figure 134: Figure 135:

9/32" Dia. thru - 8 places (TYP)(7,1mm)

3"(76,2mm) 5"

(127mm)

3/4"(19,1mm)

2-15/16"(74,6mm) 1/32"

(0,8mm)1-1/4"

(31,8mm) 10052

3"(76,2mm)

2-15/16"(74,6mm)

1/32"(0,8mm)



Page 13-31

Wash all metal parts in a non-flammable solvent. Rinse each part thoroughly and blow dry with a low pressure air jet. Assemble the parts on a clean surface, as shown in the exploded view (Figure 5). Lubricate all rubber parts with MA92- 0100 silicone lubricant, or equal (MA92-0100 is available from mathers Controls). Examine each part carefully. Visually check metal components for excessive scuffing or wear. Replace all rubber parts and any other parts that may not provide satisfactory service until the next scheduled maintenance period.

Item Number References Correspond to Callout Numbers in Figures A5 and A6

CAUTION: During disassembly, and later at re-assembly, use ONLY the 1/2 inch wrench flats (Figure 6), as provided just below the roller on the plunger assembly Item 7, to prevent plunger from rotating while either loosening or securing the threaded supply seat Item 23.

ITEM QTY PART NO DESCRIPTION ITEM QTY PART NO DESCRIPTION

1 1 CH5-0109 Valve Body 26 1 CH1-0962 Detent Spring

2 1 CH5-0207 Spring Housing 27 2 CI-1141 Drivescrew, S.S. (#2x1/4)

3 1 CH5-0304 Housing, S.S. 28 1 CH2-2501 Hub Set Screw

4 111

CH5-0405CH5-0415CH5-0419

Long Lever, S.S.Short Lever, S.SKnob Lever, S.S

29 1 CH2-2601 Indicator Pin

30 2 CV1-0800 Cartridge Valve (includes items 32&33)

31 1 CI-0013 O-Ring

5 11

CH5-0501CH10-0301

Sheave & Cam Hub (CH5, CH11)Sheave & Cam Hub (CH10)

32 2 CI-0015 O-Ring

33 2 CI-0016 O-Ring

*6 1 CH5-0601 Pilot Operator 34 4 CI-0109 O-Ring

7 1 CH5-0708 Plunger Assembly 35 3 CI-0111 O-Ring

8 11

CH5-0813CH11-0106

Manifold (CH5, CH10)Manifold (CH11)

36 1 CI-0114 O-Ring

37 1 CI-0142 O-Ring

9 1 CH5-0902 Friction Button *38 2 DRT-0612-2 Thrust Washer

10 1 CH5-1001 Detent Shaft *39 1 5100-25H Retaining Ring

11 1 CH5-1104 Spring Support *40 1 AA-307 Bearing - Sleeve

12 111

CH5-1201-7CH10-0201-5CH5-1201-9

Cam (Standard CH5)Cam (Standard CH10)Cam (Standard CH11)

41 1 MX01044 Set Screw

*42 1 AN960-C416 Flatwasher-S.S.(1/4")

43 2 CH06721 Groove Pin-S.S.

13 1 CH5-1301 Gasket 44 1 CI-0327 O-Ring

*14 1 CH5-1401 Pilot Bushing 45 2 CI-1132 Flatwasher-Brass (#10L)

15 2 CH5-1402 Bushing 46 1 AN960-C14L Flatwasher-S.S. (1/4L)

16 1 CH5-1506 Indicator Ring Assy., Chrome 47 1 CI-1106 Lockwasher-S.S. (1/4-20)

17 1 CH5-1704 Control Spring 48 1 MX03628 Nut-Nyloc, S.S. (1/4-20)

18 1 CH5-1806 Balance Piston 49 3 CI-1142 Screw-Sltd. Oval Hd. (10-24x3/8"), Chrome

20 1 CH5-4501 Filter 3 CI-1143 Screw-Sltd. Oval Hd. (10-24x3/8"), Brass

*21 1 CH5-2401 Pilot Pin 50 2 CI-1134 Screw-Soc. Hd. S.S. (10-24x3/8")

22- 1 CH5-2803 Detent Roller 51 5 CI-1135 Screw-Soc. Hd., S.S. (1/4-20x5/8")

23 1 CH5-3206 Supply Seat & Poppet Assy. 52 2 CI-1136 Screw-Soc. Hd., S.S. (1/4-20x3/4")

24 1 CH5-4202 Plunger Return Spring 53 2 CI-1131 Screw-Sltd. Oval Hd. (10-24x2), Chrome

25 1 CH5-4301 Supply Spring 55 2 CI-1150 Fitting, Plug pipe (CH10)

56 1 CI-1149 Screw-Hex Hd., S.S. (1/4-20x1/2) (CH10)

* indicates items NOT USED in CH10 style Control Heads. indicates items included in CH5-5406 Overhaul Kit.



Page 13-32

ADJUSTMENTS

E) Two adjustments can be made to the Control Head. Preload set screw Item 41 changes the maximum and minimumpressures and nut Item 48 alters the force required to move the Control Head lever.

1 Preload Pressure Adjustment

Preload set screw Item 41 varies the minimum and maximum pressure setting a like amount without changing the range of pressure.

Place the Control Head lever Item 4 in the maximum increasing pressure position (full travel) and turn the set screw Item 41 in or out until the desired maximum pressure is seen on a test gauge from the appropriate pressure signal port (see Figure 3 or 4). Nominal operating pressure ranges for available cams are shown in Table 2.

NorthwayProducts-Mathers Controls Mukilteo, Washington11027 47th Ave WMukilteo, WA 98275


Page 13-33

Recommended initial set-up pressure (at full lever travel) for all cams is 3 psi above the maximum nominal range. Final settings to personal requirements may then be made.

Speed Pressure Cam Nominal Operating Range Speed Pressure Cam Nominal Operating Range

(CH5, CH11 series) (CH10 series)

CH5-1201-5 10-70 psi CH10-0201-1 0-80 psi

CH5-1201-6 30-70 psi CH10-0201-2 0-70 psi

CH5-1201-7 10-60 psi CH10-0201-3 30-70 psi

CH5-1201-8 Falk Slip CH10-0201-4 40-75 psi

CH5-1201-9 10-80 psi CH10-0201-5 6-62 psi

2 Lever Friction Adjustment

Adjusting the nut Item 48 can vary the lever force of the Control Head. This adjustment increases or decreases the manual force required to move or hold the lever in any desired position throughout the full range of lever travel. Do not allow detent spring Item 26 to bottom out.

F) SPARES

Overhaul Kit CH5-5406: This kit provides all rubber components, as well as all valve and seat component parts. Also included is Bulletin B4-20.

Figure 13-6:

IMPORTANT: For users located in remote areas and faced with long re-supply times, it is recommended that the CH5-5406 Overhaul Kit be kept in stock aboard the vessel.

Northway Products-Mathers Controls Mukilteo, Washington11027 47th Ave wMukilteo, WA 98275


Page 14-34

B4-19 Rev.C 2/01Northway Products-Mathers

Mukilteo Plant

A) PART NUMBER:

SP9-0600 Push Button Valve (Complete as Illustrated)

B) SPECIFICATIONS:Material: brass, stainless steel and Buna N

Mounting plate: chromed brass

Maximum operating pressure: 200 psi (14.1 kg/cm2)

Flow: 55 SCFM @ 100 psi (26dm2;/sec @ 7 kg/cm2)

Weight: 8.5 oz. (241 g)

SP9 Push Button Valve

Mounting Plate 7/32 Dimension Mounting Holes

(5,6mm)

1-3/4 Dimension(44mm)1-3/4

(44mm)

7/8(22mm)

5/8(16mm)

1-3/4(44mm)

2-1/2(64mm)

2-1/2(64mm)

Gasket

1/8 N.P.T.

3/4(19mm)

1-3/8(35mm)

'IN'

'OUT'

10548

35

Items 'f' and 'g' should be replaced at regularly scheduled maintenance periods. Cleaning and lubricating with DowCorning III, or equivalent, on re-assembly.*Item 4 is available only as a complete assembly.


134*abcdefghi

111111111111

SP9-0102SP9-0301MX00927----------CI-0006CI-0010----

Mounting PlateGasketValve (SP9-0400)ButtonSpringRingValve BodyValve StemO-RingO-RingPin, SS, 3/31 X 2Set Screw, SS,8-32 X c

56

78910

11

1

4444

SP9-0501MX00960

SP9-0601

MOUNTING FASTENERS

CI-1263CI-1154CI-1163CI-1159

Boot w/insertElbow - 90E Street (CI-0929)Service Kit(Incl. items f & g)

(NOT SHOWN)

Flatwasher-SSLockwasher-SSNut-SSScrew-O.H. Pltd.

5

1

3

ah

c

b

d

4

6

g

e

f

10006A

i

36

REVISIONS LIST

Revision Date Revision Description

Drawing 6443A SJ8-4000 Transfer Junction Panel

6

Drawing 13732-1 Station 1 and Station 2 Configuration

Drawing 5324 - SV2-3501 Service Kit

Drawing 8256C - AT11-2100 Air Treatment Panel

Norgren [F74G] Filter

Norgren [R74G] Regulator

Noshok Gauges

Parker Ball Valve

52

231 Drawing 8142E-1 P/N 154759 Gauge Dimensions

54

242 Drawing 8142E-2 P/N 154759 Gauge Details

Page

Drawing 6242A-SJ8-4100 Junction Panel

Northway Products-Mathers Mukilteo, Washington11027 47th Ave WMukilteo, WA 98275


Page 26-58

B5-63 Rev.C 12/00

3-WAY AIR PILOTED PNEUMATIC VALVE

4-WAY AIR PILOTED PNEUMATIC VALVE

MANIFOLD MOUNTED

A)SPECIFICATIONS:1.Material: Anodized aluminum alloy 360 (SG100B-ASTM)

SS spool2. Maximum operating pressure: 200 psi (14.1 kg/cm5)3. Weight: 13 ounces (369 g.)4. Flow: 40 SCFM at 100 psi

B)DESCRIPTION:The SV2 spool valves are available in 3-way or 4-way configuration, air piloted, spring return, spring centered or without springs.

C)MAINTENANCE:The SV2 valve should be disassembled periodically for inspection and cleaning. Mark the valve sections as they must be reassembled in the same order. Wash all metal parts with solvent. Clean rubber parts with soap and water and examine them for cracks and signs of wear. Replace worn or defective parts as needed. Do not disas-semble the items in DETAIL 1, as Loctite has been used to hold them to the desired dimension.

Service kit SV2-3501 contains seals and screws to repair this valve. During re-assembly, lubricate all friction surfaces and seals with Dow Corning III.

SV2 Spool Valves

Figure 1: 4-Way Valve, Air Piloted, Manifold Mounted, Side Ported (Bottom Ported Available)

59

Figure 2: SV2 BreakdownITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION

1 SV2-0103 End Operator 14* CI-1103 Screw M5x.8x55(4way)2 SV2-0601 Piston 15 SV2-0303 End Plate

3* CI-0210 O-Ring 16 SV2-0404 Valve Segment4 CI-1100 Lockwasher 17 SV2-0403 Valve Segment5* CI-1101 Screw M4x.7x12 18* SV2-1702 Seal (Qty depends on valve size)6* CI-1102 Screw M4x.7x50 19 SV2-2501 Spool 4-way closed ctr.7 SV2-0202 Valve Spacer 20 SV2-1101 Spool 4-way supply ctr.8 SV2-0502 Bolt 21 SV2-1001 Spool 4-way exhaust ctr.9 SV2-0902 Washer 22 SV2-2401 Spool 4-way, 2 position10 SV2-0802 Washer 23 SV2-1201 Spool 3-way11 SV2-1602 Spring (Blue) 20 psi * SV2-3501 Service Kit11 SV2-1402 Spring (Yellow) 35 psi11 SV2-1305 Spring (Brown) 55 psi MANIFOLDS11 SV2-1302 Spring (Red) 85 psi 3-way SV2-2002 Side Ported12 SV2-1801 Spring Seat SV2-2202 Back Ported13 SV2-0701 Push Rod 4-way SV2-1902 Side Ported

14* CI-1104 Screw M5x.8x35 (3-way) SV2-2102 Back Ported

Northway products-Mathers Controls Mukilteo, Washington11027 47th Ave WMukilteo, WA 98275


Page 26-60

Figure 3: SV2 Part Number Breakdown



Page 27-62

B5-72 Rev.C 2/01

D) OPERATION:The RV8 will trip On as the gear oil pressure rises above 140 psi and will trip Off as gear oil pres-sure falls below 120 psi.

E) MAINTENANCE:Periodically disassemble the relay valve for cleaning, inspection and lubrication. Clean all metalparts with solvent, and wash all rubber parts with soap and water. Rinse thoroughly and blowdry with low pressure air. Replace those parts which are worn or damaged. During reassembly,lubricate moving parts and seals with Dow Corning III. Service Kit RV8-1601 contains all partsneeded to repair this valve.

RV8 Relay Valve

A) PART NORV8-1600 Relay Valve

B) Port Identification1. Supply2. Delivery (Out)3. Control (In)E. Exhaust

C) SPECIFICATIONS:Material:Brass, stainless steel & Buna-NOperating Pressure: Port 1 125 psi.

Port 3 0-300 psi.Limits: Maximum On at 150 psi.

Minimum Off at 130 psi.Weight: 4 lbs.Overall Dimensions: 6-1/2 x 1-3/4 x 2 in.

10484

63

*Included in Service Kit


123456*7*

1111111

RV5-0101RV5-0201RV5-0301RV5-0401-1RV8-0104CI-0011CI-0114

CylinderEnd CapRetaining PlatePiston OperatorSpringO-RingO-Ring

8*9*10111213

111112

O-RingMJVO-3CN5000-156HFC-6446MA89-0101AN960-C1216LRV8-1601

O-RingValveSnap-ringBleeder FittingLabelFlatwasher-SSService Kit

64

Drawing 7199D SP10-06666 Selector

pneumatic ad12-5000 system...

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